The dental enamel adhesives are in clinical use for many years. Adhesive dentistry with the acid-etching of enamel has proven reliable, because bond strengths reach the internal strength of enamel prism components. The new universal bonding agents are performing well on enamel and dentin. Because of the hydrophilic character of the adhesives promise higher and faster bond strengths to dentin as shown in many short-term studies. The problematic aspects will be discussed. The step-by-step-procedure in a class V-restoration demonstrates the clinical application.